Improvement in hasp-locks



W. D. HEISTER.

improvement in Hasp Locks.

Patented 096.19, 1811.

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tinruega.

NIED STATES PATENT FFICE.

IMPROVEMENT IN HASP-LOCKS.

Specification forming part of Letters Patent No. 122,013, dated December 19, 1871.

To all 'whom it may concern:

Beit known that L WILLIAM D. Hnrsrnn, of Newton Hamilton, in the county of Mii-Hin and State of Pennsylvania, have invented a certain new and useful Improvement in Oar-Lock; and I do hereby declare that the following.; is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanyin g drawing forming part of this specification, in which-- Figure 1 represents a face view, partly in section, of my improved car-lock. Fig. 2 is a longitudinal section ofthe saine on the line c c, Fig. 1. Fig. 3 is an inverted face view of the keyhole plate. Fig. a is an inner sectional view of the lock. Fig. 5 is a side view of the key.

Similar letters of reference indicate correspondin g parts. y

My invention relates to the manufacture of carlocks, and is lirst hereinafter fully described and subsequently pointed out in the claim.

A in the drawing represents the lock-case affixed to a plate, B, which is, by screws or other means, securely fastened to the car. O is the bolt, pivoted at one end by a staple projection, a', to the plate B. Its other end enters the lockcase, and is secured therein by the rotary and vibrating tumblers D and E. The opening through the bolt for the staple a to enter is a lengthened slot, O', which permits longitudinal motion to the bolt when the same is unlocked. F is the hasp, which is fastened to the door. It is, when to be locked, placed against the face of the plate B over a pair ot' projecting pins, b b, and under the bolt. When the latter is fastened in the lock it covers the hasp F, and is between the two pins b I, as shown in Fig. 1. The hasp, which is perforated or slotted to lit over the pins b, is, of course, locked by them and by the bolt, and cannot be removed until the bolt has been released from the lock, slid out of the same, and swung down clear ofthe lock and uncovering the hasp. The lockcase contains the tumblers l) D and E E, of which the former are rotating and the latter vibrating. The rotating tumblers D are made circular, with hooks d which catch over a pin, c, on the bolt, and with projecting arms ffor the springs g to bear against. These springs act on the arms to so turn the tumblers Das to force the hooks d over the pin e. The tumblers D have a number of concentric slots which admit projecting pins g of the lock-case, and are guided thereon in the circular motion when turned by the key. The tumblers or catches E E are pivoted at h to the lock-case, and have hooks i at their free ends to catch over the notched end of the bolt C. A spring, j, bears against the tuniblers E and crowds their hooks over the shoulders K on the bolt, as shown in Fig. 4. The key has double bits l l, as shown in Fig. 5. It is introduced through a keyhole, m, in the face plate ofthe lock, and moves at once the rings and vibrating tumblers, turning the former and spreading the latter apart until the bolt is release-(land can be withdrawn. G is the key-hole plate covering the key-hole m when the key is withdrawn. The inner face of the key-hole plate is recessed, and receives a spring, n, whose 011e end is fastened to or bears against a projection on the face plate of the lock in such manner as to keep the key-hole automaticallycovered. 0 represents the seal attachment.

When the bolt is putin the guide-that is, between the pins b b--and run partly in the lockcase, a piece of lead or wire, o, is put through two holes that are perforated in the bolt, and has one end flattened and the other end turned up over the bolt and ilattened. l

By the combination ofthe circular and vibrating tumblers the lock is made very safe, and cannot be opened by the ordinary fraudulent means.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The bolt C having slot O', and secured to plate B by means of the staple a, in combination with the pins b b and hasp F, substantially as and for the purpose set forth.

WILLIAM D. HEISTER.

' Witnesses:

DAVID Hmsrnn,

S. M. BLEAKERLY. (93) 

